Scott said:
Paul,
Many thanks for your detail info. The computer is about 4 yrs old and
would like to replace the existing 60 GB hdd with a 250 GB one if
possible. Is there any way to know if the computer can support upto 250
GB? The copying utility is great and if it is suitable for all hard
disks or their brand only.
Regards,
Scott
There is actually one web site, which will sell you a small utility to
check the level of support. But I have no idea how legitimate their
algorithm is. (If they're just checking BIOS dates for example, that
would suck.)
The transition point for 48 bit LBA (>137GB), is sometime in the first part
of 2003. At least, Asus motherboards claimed to all support 48 bit LBA after that
date. (Since the BIOS is written in large part, by Award/AMI/Phoenix, the support
stems from them, and not from Asus.) Since now it is 2009, and your
laptop is 4 years old, that would be 2005. So I don't see a reason for
concern there.
There is the capacity aspect of the new drive. But there is also the
power dissipation of the new drive. In some cases, people find that the
replacement drive runs hotter than the old one.
If the old drive supports SMART, you can use the temperature display on
this program, to view the hard drive operating temperature. (The temperature
display is in the upper center of the window.) The purpose of monitoring this,
is so you have a "baseline" for evaluating the condition of the new drive.
For example, use a program that visits a lot of the disk, as a means
to "heat up" the drive. You want both the idle temperature, and the
busy temperature, as a means to verify you're not "cooking" the new drive.
(There are no guarantees about this temperature monitoring capability,
the results might not bear any resemblance to the truth. But it is
worth a shot.)
(Version 2.55 is free)
http://www.hdtune.com/download.html
This one uses 2.5W peak, as an example. This is a 5400RPM IDE
drive. (Some spec pages, include startup current, which can
mean double the power for the first few seconds. That is only
an issue, for bus powered 2.5" USB enclosures. It is the seek
and read/write numbers, that if applied over an extended time,
would tend to heat up the drive.)
http://www.wdc.com/en/products/products.asp?driveid=346&language=en
You can also check the mechanical dimensions of the drive in that table.
The thickness is what I'd be verifying. If you get the drive model
number of the existing drive (using HDTune, Everest, or some
other free utility), you may be able to look up the particulars
of the old drive, without removing it. (I'm mentioning this,
because for some computer hardware upgrades, dimensions are
an issue. So no matter what it is, I always ask the question,
"are the dimensions the same".)
Paul